Wrench



(No Model.)

O.` C. UGUSTINE.

WRENGH.

Patented Apr. 22

um .lll w UNITED STATES PATENT OFFICE.

OIIARLEY CALI/TEN AUGUSTINE, OF MUSCATINE, IOIVA.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 426,161, dated April 22, 1890.

Application filed October 9, 1889. Serial No.' 326,467. (No model.)

To all whom t may concern:

3e it known that l, @HARLEY CALvEN AU- GUSTINE, a citizen of the United States, residing at Muscatine, in the county of Museatine and State of Iowa, have invented a new and useful lVrench, of which the following is a specilication.

This invention has relation to wrenches, and among` the objects in view are to provide a wrench-stock adapted to receive different wrench-heads, each of which is provided with sockets of varying sizes.

lith these general objects in view the invention consists in certain features of construction hereinafter specified and particularly pointed out in the claim.

Referring to the drawings, Figure l is a perspective of a wrench constructed in accordance with my invention. Fig. 2 isa similar view, the head removed. Fig. 3 is a similar view of the head.

Like numerals ot reference indicate like parts in all the figures of the drawings.

In constructing my wrench I form the same of two opposite halves or members 1 and 2, which at their rear ends are provided with adjoining flat faces and combined to form a handle 3, and are connected securely together by a screw 4., inserted through the two members near the butt of the handle and by a second screw 5 at the neck thereof. Beyond the point of connection formed by the second screw 5 each of the members is provided with a semicireular jaw G, the two combining to form a completely circular jaw, said jaws being bifurcated at their extremities and connected by a link 7, terminating in the bifurcations connected thereto by pins 8. One of themembers is provided with a stud 9, projectingr from the exterior surface of its semicireular jaw near its neck, and in the end of the stud there is pivoted a locking-lever 10, the outer end of which is bent to form a locking-bolt 1 l, an d projects thro ugh an opening l2, formed in the head and beyond the inner surface of the jaw. The rear portion of the lever is flattened to form a thumb-plate 13.

le represents a head of cylindrical shape, and having a central peripheral groove 15 of a diameter and width agreeing with the diameter and width of the two jaws, the opposite faces or flanges embracing the opposite faces ofthe jaws. The heads are provided with sockets 1G, either of a shape to receive a nut of one size or it may be varying sizes. .In this instance I so form the sockets of each head as to be capable of receiving a number of variously-sized nuts. In this peculiar construction of socket dianietrically-opposite recesses 17 are formed transverselyin the head, each recess being of a size differing from the remainder, and having its inner wall removed, forming an opening in the center oi the head and what would form four angles, an angle occurring` at the juncture of each of the recesses. I, however, form a rectangular notch 18 at such angles, the four not-ches combining to form a large nut-receiving socket, and it will thus be seen that in the single head I provide a socket adapted to accurately lit iive nuts of various sizes and capable of operating upon a considerably greater number. The periphery of the head between its iianges is perforated at intervals, and into the same is adapted to take the bolt end of the lockinglever, and in this manner said head may be revolved and locked in a position relative to the handle so that the wrench may be conveniently applied to nuts almost inaccessible with an ordinary wrench.

The locking-lever is normally maintained in a locked position by means of a iiat spring 20, terminating under the same in rear of the supporting-stud, so that in order to revolve the wrench-head the rear end of the lever must be pressed downwardly, so as to withdraw the bolt end, and is then released when the head has reached the desired position and said bolt end enters an adjacent recess. Having thus described my invention, what I claim is- In a wrench, a head having two dialnetrically-opposite pairs of variously-sized nutreceiving recesses, the head being notched intermediate each of the recesses to form an inner larger recess, substantially as specified.

In testimony'that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

CHARLEY CALVEN AUGUSTINE.

W'itnesses:

A. W. SCOTT,

STROHM. 

